Veeva Systems Inc. (NYSE:VEEV) faces a downgrade by KeyBanc to a Sector Weight rating amidst a 22.8% decline over the past month.The stock's underperformance is highlighted against the Zacks S&P 500 composite's slight increase of 0.9%.Despite market downturns, Veeva's market capitalization of approximately $37.72 billion and active trading volume suggest continued investor interest.Veeva Systems Inc. (NYSE:VEEV) is a prominent player in the cloud-based software industry, primarily serving the life sciences ...